Activator

start

Called when this bundle is started so the Framework can perform the
bundle-specific activities necessary to start this bundle. This method
can be used to register services or to allocate any resources that this
bundle needs.

This method must complete and return to its caller in a timely manner.

Specified by:

start in interface org.osgi.framework.BundleActivator

Parameters:

context - The execution context of the bundle being started.

Throws:

Exception - If this method throws an exception, this
bundle is marked as stopped and the Framework will remove this
bundle's listeners, unregister all services registered by this
bundle, and release all services used by this bundle.

stop

Called when this bundle is stopped so the Framework can perform the
bundle-specific activities necessary to stop the bundle. In general, this
method should undo the work that the BundleActivator.start
method started. There should be no active threads that were started by
this bundle when this bundle returns. A stopped bundle must not call any
Framework objects.

This method must complete and return to its caller in a timely manner.

Specified by:

stop in interface org.osgi.framework.BundleActivator

Parameters:

context - The execution context of the bundle being stopped.

Throws:

Exception - If this method throws an exception, the
bundle is still marked as stopped, and the Framework will remove
the bundle's listeners, unregister all services registered by the
bundle, and release all services used by the bundle.